{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["state or province of headquarters", "members", "else"], "input": "Xstrata  based in Zug  Switzerland  is the world's biggest coal exporter ."}
{"state or province of headquarters": [], "members": [], "else": []}